Facing tool



J A. SHARPNACK.

FACING TOOL.

APPLICATION FILED FEB. 5, 1921.

Patented July 18, 1922 ILAQSAGQ.

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Application f lcdFcbruary 5, 1921. Serial No. 442,731.

T 0 all whom it may con-06m:

Be it known'that 1, James A. SHARPNAGK. a citizen of the United States.and a resident Rices Landing, in the county of Greene and State ofPennsylvania, have invented a new and Improved Facing Tool, of which thefollowing is a full, clear, and exact description.

This invention relates to facing tools. and has reference moreparticularly to a tool of this kind which Comprises an elongated shankadapted to be introduced into the registering openings. of the steeringknuckle yoke of an axle, and a cutter removably carried by the shank,and extending laterally beyond the same. i

An object of the invention is to provide a. simple and efficient facingtool particularly useful in facing steering knuckle yokes of automobileaxles which can be inexpensively manufactured, and which requires nospecial experience or skill for its manipulation.

A further object of the invention is to provide a tool of the classdescribed by means of which smooth and even faces can be easily andrapidly formed. with which cutters of different kinds and sizes can beused, which can be employed for steering knuckle yokes of diiferentkinds. and which may be employed for a variety of purposes.

References to be had to the accompanying drawings in which likereference numerals indicate corresponding parts in all the figures, andin which- Figure 1 is an elevation of one end of an automobile axle,partly in vertical section, showing an embodiment of my inventionapplied thereto;

Figure 2 is an elevation of the upper end of the shank of one form ofthe tool;

Figure 3 is a group view showing a cutter in side elevation, end.elevation, and in plan view;

of axles of automobiles, such as Ford automobiles. it can also be used.for other pur poses. Certain. of the details of construction form nopart of the invention, and may be varied in accordance withv individualpreference or special conditions without departing from the spirit ofthe invention.

Referring more particularly to the draw ings, I have shown part of anaxle 10, having a steering knuckle yoke 11, terminating in an upper arm12 and av lower arm 13. These arms have registering openings l". and 15,which in the usual manner receive the steering knuckle pin or shaft, thesteering knuckle 16 being received between the arms.

In one form of my invention, I. provide a shank 1.7 having one end 18threaded. and the other end 19 of reduced tapered form terminating in asquared head 20. adopted to receive a wrench or other suitable tool bymeans of which the shank can be turned to operate the tool. Below thethreaded end. the shank has a transverse slot- 21 of rectangularcross-section. This slot is formed to receive an elongated. cutter 22.-having at opposite ends cutting edges It is provided in its lower edgewith a rectangular notch 24 which forms a pair of spaced downwardlydisposed extensions 25. hfounted upon the threaded end of the shank is anut 26 below which is carried a helical spring 27 encompassing theshank.

hen the tool is to be used, for example in facing the inside of the yokearm 12., it is positioned in the openings let and 15, as shown in Figure1, with the spring on gaging the upper side of the arm 12. The cutter ispositioned in the slot 21 with the extensions below the lower edge ofthe slot at each side of the shank, thus preventing lateral movement ofthe cutter. The nut 26 is turned down to place the spring under tensionso that the shank is drawn upwardly. and the cutting edges of the cutterare maintained in operative engagement with. the surface to be faced. Byturning the shank in any convenient manner, the facing action is rapidlyand easily carried out.

To adapt the tool for another use, I ap ply it in a modified form. Theshank below the slot 21 has an opening 28 drilled through it. In thisopening is snugly fitted a pin 29 the ends which project beyond thesides of the shank. In this form of device I employ a cylindricalmilling cutter 30, the upper edge of which is provided with the usualcutter teeth 31. The cutter fits snugly but movably upon the shank, andhas its lower edge provided with a pair of recesses 32 at diametricallyopposite points to receive the ends of the pin 29, to lock the cutter inposition and cause it to turn with the shank.

This form of the tool can be used for a variety of purposes, as shownfor example in Figure 7. It can be employed to face the ends of steeringknuckle bushings 33. For this purpose, the shank is placed within andpassing through the steering knuckle 16 with the cutter engaging the endof the bushing to be faced. With this form of the device, the nut 26holds the spring 27 against the opposite end of the steering knuckle asshown.

Having thus described my invention, I claim 1. A facing tool, comprisingan elongated shank having one end threaded and adapted to be inserted inthe registering openings of a steering knuckle axleand turned therein, aremovable cutter on the shank intermediate of its ends, the cutter beingpro vided with a recessed lower edge and the shank with means forengaging the recessed edge of the cutter, a nut 011 the threaded end ofthe shank, and a spring on the shank and adapted to be compressed by thenut between it and the said axle, whereby the (Illir ter will be held inlocked engagement with the inner face of one arm of the knuckle axle.

2. A. facing tool comprising a shank having one end screw threaded andits other end adapted to receive a tool for turning it, a cutter on theshank intermediate of its ends, a nut on the threaded end of the shank,and a spring on the shank and adapted to be compressed by the nutbetween it and the work to hold the cutter in engagement with the work.I

3. A. facing tool comprising an elongated. shank having one end threadedand its other end reduced and terminating in a polygonal. portion, acutter removably mounted onth'e shankand having interlocking engagementtherewith, a nut on the threaded end of the shank. and 'a spring on theshank and adapted to be compressed by the nut between it i and the work,whereby the cutter will be held an interlocked. engagement with theshank and in engagement with the work.

Jinx res ANSON si-maruaok.

